First of all, you can try to put yourself in the boyfriend's shoes. Buying you half-price lipstick is not a prerequisite for loving you or not loving you. A good relationship needs mutual understanding and tolerance between two people. You also know that your boyfriend's family conditions are not good. You should try to understand that he should work with him. Remember, it doesn't mean that you only wear lipstick at half price. You are willing to cooperate with him.